Sawing-machine for halving carcasses.



D. DAVEY & H. MAISON.

SAWING MACHINE FOR HALvmG CARCASSES.

AAPPLICATION FILED MAR. 13 1916.

D. DAVEY & H. MAISON.

SAWING MACHINE FOR HALVING CARCASSES.

APPucATloN men MAH. 13. :91s.

1,204,345. Patented Nov. T, 1916.

3 SHEETS-SHEET 2.

Danil D a reja forni/Maison BJ D. DAVEY '5L H. MAISON.

SAWING MACHINE FOR HALVING CARCASSES.

APPLICATION men MAR. x3. 1916.

1 ,204,345. Patented Nov. 7, 1916.

. 3 SHEETS-SHEET 3.

.Da nie] Pacey Ha ffl Ada/'.5017

UNITED sTATEsrAcJENT OFFICE.

:DANIEL DAVEY, 0F MABIBYBKONG, .AND HARRY MAISON, 0F FLEMINGTON, VICTGBIA,

AUSTRALIA.

SAW'INGMACHINE FOB HALVING CARCASSES.

Bpecicmtlon of Letters Patent.

Patented Nov. 7, 1916.

Arplicaticn filed March. 13, 1918. Serial No. 83,929.

'o @Il 107mm it may gom-wn Bc it known that we, DANIEL Driver, u subject of the King of (iront Britain and Ireland, r., residing ut lllaribyrnong, in the Stilte of Victorin, Commonwealth of Australia, uml HARRY MAisoN, n subject of the King of (iront Britain und ireland, &c., residing :it Flemington, in the Stute of Victoria, (jonniioiiweclth of Australia, have invented Certain new und useful lixiprovements in Sinving-Mucliines for Hnlving larcasses; und we do hereby declare the following to be :i full. clear, and exact description, of the invention, such as will enable others skilled in thc nrt to which it nppertnins to make and use the saine.

(hir machine is of that kind in which n circuler sow. in casing from which it partly proiects, has a. central hcvel wheel in. mesh with n bevel wheel attached to n lateral.

v shaft to be rotated, and extending beyond the casing, the sow being movable in and out l of the vertical plane into any position required for h nlving :i licei.1 or other carcass, which is suspended in the usual manner.

'i Oiironschinc to-be used principally in abattoirs, a: l, sides the halvmg aforo said; lund another drawback said, it is adopted to otherwise sew meat containing thick bone. Our improvements enable a. butcher tonttain more satisfactory results than hitherto in regard to speed of operations and. general eiiiciency-especally when the bones of successive carcasses vary from those which are gristly to these which cre hair-d and brittle.

` produced splintering of brittle bone which moted, and lubrication provided.

would cause iii'ury to workmen. And cleavers do not halve curcosses leaving smooth surfaces. l

.We arrange the sawcasing so that its "internal rotating parte are protected from becoming fouled, while easy runnin is proe sow casing narrows or tapers from its central part toits edges. t. 4

The 4iiiiichinc has any suitable )cinte such that the butcher caiipnll the Saw to or push 4 it from him, critican move it to different dividing means as aforei plaines, und to different heights, and shift it to the right or left of its revious position. This enables him to ma e a clean and correct cut even while a carcass s.'ays. The joints we shall illustrate are, at the suspended heed of the nmchinc, u pivot joint and u rotary joint; on the saw sido ofthe machine, zi rotary joint (preferably located close to the saw, and which need not'allow of saw movement fur from thc vertical plane) und` in an intermediate position of the frame oi' smv supports, e pivot joint which we make of box form'.

We provide means adapted to be guided by the spinal column of the cores` nea-r thi cutting: odge of the sow, the holding of which to the carcass is thus assisted, to enable the butcher to correctly halve the carcass. These means nre both outside and inside the carcass cavity, and are ordinarily groovcd rollers between which part of the carcass is gripped, but, as a modification, we mcy use other contact members, such iis slides. The rollers nre on arms which are pivoted on framing neer the saw. The rollers are best composed of sections having means to yieldingly press them toward one another.

0m' improvements include a ard orsawdust receiver to remote cloanlmess, to save time; and if deslred to enable the sawdust, which is usefiil as food material, to be utilized.

Controlling means are provideds-including vertical and transverse handles, near the saw, and there may be an electric switch near the handles to Vemib'le the driving power to be economized, by stopping the saw rotation when cuttingis not required, Safety is also thus promoted. v

We provide ineens, as n rnck bnr, adopted to be free from Ypcwl mechonisin .-tluriiig` but the butchenthrbu'ghcoiinect'ing sowing' l i from the paw! .means iis o Wire to a trigger on the ,handlesheconlrbljcon-- engage the pawls with thoracic, thg

can stop thc saw from upward or de v'iiviui4 movement.

The head gear of our machine adapted to travel to allow vthe mach4 1 he shifted from one carcass tollnothif the movement of successive and from the machineis in some claneopreferred.

cutter, stood facing the carcass cavity wi ,g ,4 11o Hitherto e butcher, operating m-rotatnti thevcutter rotating toward him. We findv other matter at the outer Lside of the carcass are escaped.

There are various novel features in our invention whict'rvvilll now be described by the aid ofthe accompanying drawings, but the cor/istruction` illustrated may be modi- 4tied as to designsand proportions of parts,

`tion showing a joint near the saw.

and part of its casing omitted.

and minor details. while' retaining matter which is claimed hereinafter.

Figure 1 is -a diagrammatic view of the machine with the saw raised, and omitting some details shown in other figures. To save space "some parts are broken out and the remaining parts are shown closedtogether. Fig, 2 ifs (on a Alarger scale than Fig. 1) a. side elevatlon of 4parts of the machine at the sawl end. The saw and a removable cheek of the saw casing are shown partly broken away, and the direction ot' saw rotation is shown by a'n arrow. Fig. 3 is-on a larger scale than Fig. -a plan in horizontal sec- Fig. 4 is a cross section of a detail of l `ig.'2. Fig. 5 is a plan of'parts in Yl `ig. 2, with the saw Y Fig, Ils-hows, in section, a roller which helps toguide the saw. Fig. 7, is a horizontal section of part of the saw" casing,ishowi`ng a shaft having a gearlwheel. Fig, 8 sh'ows, in plan, part of `the saw, its gear wheel, and anti'friction bearings on its axle. Fig. 9 is a horizontal section of part ci' the removable cheek. Fig. 1() is aV vertical section through the casing. Figs. 11 and 12 are perspective sketches of 1.pawl mechanism. Figs.' 13j and 14 show,

from opposite sides, perspective sketches of the box joint. The axle, axle sleeve,` inions, cheeks, and axle straps`are remove x in the case of Fig. 14. Fig. 15 is fan elevation in trxmsverse' section throughthe box joint.

` Fig. 16 shows a side view, partly in vertical section, of parts at the head of the mechanism; and F ig. 17 shows an elevation at right angles to Fig. 1G, also partly in verti-- cal section.

l shows the circular saw, with its sing 5 connected by a projection 5 with a shaft casing 4*.

4 is a lateral shaft which extends through the casing 4a to a pivot or Aboit joint-15, 16, whereby the parts 4, 4, the sa casing, and the saw are adapted lto be swtyrig upwardly or downwardly. t

The saw bevel wheel 2, hdiiing a hub 47 over anaxle, gears with and` is driven by a bevel wheel, on the shaft/1 which is partly in a` tunnel or chamber ll in casing 5, and partly in the projection 5, on which is a toothed rack fr. 'lhc casing is open around an arc (which may be semioircular) to allow the sav' to project for cutting purposes at 1.

5 is the removable cheek of the casing. The edge' 4H of the casing, and the edge 54, of the removable cheek, are connected, as by screws. 'Rhei-e is a central chamber 45 in the casing adapted to contain lubricant,- formed partly by the saw, and partly b an annular wall 40 projecting inwardly rom the casing. The chamber is to contain, and to protect troni sawdust, the gear wheels. A similar annular protective wall 50, projects inwardly from the cheek 5, the saw working between these Walls. Each Wall is recessed, at 4l, 51 res ectively, to contain packing, to contact Witi the saw and reduce friction and noise. At oppositeA sides of the saw its axle carries antifriction bearings 48, 4S), in recesses 43, and 52, in the casing and its removable cheek. A hole 42 in the casing allows access to the axle.

5" is a projection from the saw casing, to support a handle shank, shown as a distorted elongated vertical ring, having a front 6 and rear 7, respectively providing high and low -hand grips, to suit diii'erent men, and dierent positions of the saw. These are not slight differences, for the vertical out in a suspended beet' carcass measures five feet or more. There are hand grips 8, 9 projecting transversely, one at each side from the handle shank, for the respective hands of the butcher. There is a tri ger, or small handle 6c, in proximity to t e said grips,

adapted to operate a cord 6", (only partly saw, and when released leaves the saw free to alter its heightf-as during sawing.

Thejoint in Fi r. 3 is formed as by having an internal threa on the projection 5, engaged by a thread onatube 36, which is fixed to the casing l4. One or more stops, as pins 5f, from tube 36, extend into or through the part 5c, through slots 35 in the latter. These slots are long enough to allow' the maximum desiredl rotary movement of the saw, the planeof which is normally vertical, owing to the weight of the rollers and their arms. After the saw is moved ,from the vertical plane the latter v'vill naturally be regained when the butcher ceases to prevent it by his control of the handles,Y

on anarm 28 is` an outer roller, to fit on and be guided by the ridge along the back of the carcass; and 25 on an arm 274 is i an inner roller to fit on and be guided by the internal spinal ridge in the carcass cavity. The ridges act as rails. Arm 27 has a handle 2T", and is pivoted at 29, and arm 28 is pivoted at 30. These pivots are in projections j5", 5, of the saw casing or any suitable supports.

26'* and 25* are roller grooves or recesses, into which the ridges of the carcass project.

, These rollers have, as in Fig. 6, axles 55, and

are composed of a plurality of sections as halyes, which are normally pressed together by springs 56, enteringrecesses 57 in the sections, which are movableapart by the spinal ridge when the width of the latter in the roller groove during sawing so requires.

The inner roller 25 is adjustable as b the rack 5'i engaged by the handle 27 to press the carcass more or less, or to be located out of contact with it, as when beginning sawing, tokeep the roller clear of the kidneys. After the halving cut is partly made, we set the inner roller under or in any predetermined position relatively to the idnevs, against the spinal ridge and it will then be guided down by that ridge as the saw descends.

The arm 28 is shown as a spring depressed arm, which enables the outer roller 26 to automatically follow the curves and irregularities of the carcass as sawing proceeds. Thus there are one or more sptings 28 to depress roller 26, by pressing etween lugs 5 on arm 28, or by pressing on a part of arm 28, and a part of or on the saw casin 28 is a handle on the arm 28 to enab e the butcher to move the said arm on its pivot. Thus roller 26 can beheld farther from the saw than usual, and this is done at first when ositioning a carcassfor sawing purposes. ven one roller, guided by the spinal column, will considerably assist to Secure accurate halvng.

e sawdust ard or receptacle tu co1- lect flying partie es of meat and bone in7 stead of allowin these to fall on the door, or to be spat r upon the butcher, and elsewhere, is of any suitable form, as that of a trough. It han sides 58 of any suitable sizes, and a base .59. removably or otherwise attached to any suitable support, as to the arm i28. What the saw hurle from it as it ro- 13'i on the shaft 13 tates is lsticky and masses tog 'attached tothe casing 14. The

ether, and can be accumulated for commercial purposes.

By toothed gearing in the box joint 15,16

`which has cheeks 12,.the shaft 4 is conne to a shaft '13,-called for distin ishing purposes a suspension shaft. Sha 4 carries in the box 15, 16 a. bevel wheel 4", en gaging a gear wheel 10 on a sleeve 10, on a suitably supported transverse axle 11, which passes through the cheeks 12.- On sleeve 10, a gear wheel 10'J meshes with a bevel wheel which extends upwardl l,in a casing 14. `T e side 15 of the joint 1s connected to the casing 4*, and the side 16 is p box sides 15, 16 are held betweenany suitable memare opposite to `springs up from hard bers as clamps 15", 15", overlapping the side 16, and extending from the other side. Thus lugs 15" extend from limbs or arms 22, 2,2, 22 shown yfined to a claw l5", which is fixed on the box side 15 which can rotate relatively to part 16, as indicated by arrows a in Fig. 1. A rotary head joint of casing 1l is provided as by screwing to that casing a tubo 31, the top of which is enlar ed and rotatably supported on the base o a gear box 18.

When strength and li htness of construction are needed it isuseg side of the box joint which carries the easing 4, the arms 22'l and 22" and to connect the said arms and the saw casing projection 5e by tension or tie wires 22.

Any suitable means are provided for ef fecting the rotation of the shafts, gears, and saw. Thus a bevel wheel 13 on shaft 13, meshes with a bevel wheel lpn a shaft 17, which 4is to be driven -by electric or other power. The wheels 13", 17* are in a box 1B, which is pivoted to the shaft 17 as bv hollow trunnions 18., 17" is a pulley. This ivotal or head joint allows the shaft 13 to be swun) to and from the butcher, as indicated y the arrows b.

32l are rods or straps of regulatable length connected to a support 19", fixed to the tube 31, 'the strap bases 33 being connected to the axle 11. f

One frame arm 22, is utilized to carry the pawl mechanism, andY extends to the rack har 19, which has any suitable location and end support, as by being pivoted to the collar or member 19". The rack bar teeth 19* pawls 20, which are pivoted on a carrier 19. The arm 22 is so weighted near its end 24 that when awls 2Q do not fix the arm to the rack, and when the han'- dles are uncontrolled, the weight 23 makes the arm descend, making the saw rise in an arc clear of the cut in the carcass. This is unlike other earlier devices which had the cutting member heavier so that it would not tend to rise when not held down by the butcher. The weight 23 may be made adjustable in anyl suitable manner. The butcher can promptly arrest the rise of the saw' if it bone, by dropping the pawls. 'f

The aw] carrier'has a slot 19, through which t e bar 19 extends to allow' sliding of the carrier. This latter has a slide bolt 21, from which the cord 6 extends to the aforesaid trigger; and there is a carrier projection 19',1by which Vto pivot ,the carrier to the arm 22,-though a pivot t is not' required when the bar 19 is arcuate; with the axle 11 central. The carrier 19 has another projection 1 9, arid the aidebbeolt 214 his a. llg 21, a spring 2 tween t e sai pr0 jeetion and lug, `keepin the slide bolt21 which controls the paw 20, in its normal u1 to attach on that i position..l These pawls have ends engaging the slide bolt as by entering slide bolt recesses 21".

Having described this invention, what is claimed by Letters Patent is 1. In a carcass sawing machine, a circular saw having a casing from which part of the saw projects, means to rotate the saw, jointed supporting means to allow the casing and saw to be moved into any position required for halving a suspended carcass, a member pivoted on opposite sides of the center of the saw, each member having a roller at its end, to contact with the inside and outside of the carcass to guide the saw.

2. In a carcass sawing machine, a circular saw, and, near its cutting edge, one or more members such as rollers to be guided by the carcass surface, and framing carrying the saw and having weighted means to cause the saw to rise when its handles are uncontrolled, and a device on the framing and connected to the handles, to enable the said rise to be stopped.

3. In a carcass sawing machine, a circular saw, nearwhich are pivoted two arms each carrying la' grooyed member to be .located during sawipg with its groove engaging and guided by a separate spinal rldge of the carcass part of said carcass being gripped between the said grooied members.

4. In a carcass sawing machine, a circular saw, and supported near its cutting edge, sections forming a groove and having means to yieldingly press them toward one another. and adapted during sawing to rest on and be guided by a spinal ridgeof the carcass.

5. In a carcass sawing machine, a circular saw, and supported near its cutting edge, grooved rollers in sections, with means to yieldingly press the sections toward one another, the `sections being adapted, when required during sawing, to rest on and be guided by respective internal and external spinal ridges of a suspended carcass.

6. In a carcass sawing machine, a circular saw having a casing from part of which a portion of the edge of the saw projects, and a sawdust receiver or guard near the said projecting edge and supported from said casing.

7. In,V a carcass sawing machine, a circular saw having a sing from part of which the saw iroyicts,` nd a sawdust receiver or mounts` on an arm connected with `said casin said saw carrying means to contact Witfand be guided along the outsidefof thelicarcass during sawing.

. 8. In a carcass sawing machine. a circular yosaw having a casingfrom part of which the "saw prcects, a driving shaft and gear `wheels in the casing, means to prevent sawldust fouling the said shaft and wheels, an arm connected with said casing which carries means to contact with and `be guided along a carcass, and a sawdust receiver or guard mounted on the said arm.

9. In a carcass sawing machine, a circular saw, a frame supporting the saw, an outer arm pivoted to the frame, a roller at the free end of the outer arm, a spring attached to the outer arm to normally locate the roller in operative position, an inner arm pivoted to the frame, a roller at the free end of the inner arm, the inner arm having a handle, a latch adjacent the handle to lock the inner arm in adjusted position, a hand grip extending from the frame, handles extending from the hand grip, means foreholdin the saw in inoperative position, and a trigger on the grip to operate the latter means.

10. In a carcass sawing machine, .the combination of a pivoted depending hollow casing, a gear box at the lower end of the depending hollow casing, means for rotatively mounting the gear box on the depending hollow .asing, a saw frame extending from the gear box, said frame having a saw housing open on its under side, a saw mounted in the housing and extending through the open bottom, gearing in the gear box, connections between the gearing and the saw, power means 'at the upper end of the depending hollow casing, connections from the power means to the gearing, an arm extending from the gear box, a weight mounted thereon, a rack extending from the depending hollow easing, a pawl pivoted to the arm and cooperating with the rack, and means adjacent the saw to release the pawl from the rack to permit the saw to be moved vertically.

ll. In a carcass sawing machine, the combination of a frame pivoted to move vertically and horizontally and including a forwardly `extending arm having a housing and a rearwardly extending arm having a weight, a saw mounted in the housing, means mounted in the frame for rotating the saw, u hand grip at the end of the forwardly extending arm adjacent the saw, handles extending from opposite sides of the hand grip, pivotally mounted guides on the frame each side the center of the saw, pawliand rack mechanism for holding the saw in adjusted position. and means on the hand grip tor operating the pawl.

12. In a carcass sawing machine, the combination of a vertically movable frame, a horizontally movable frame, means for pivotally mounting the vertically movable 'Frame on the lower end of the horizontally movable frame, the vertically movable frame having a housing near one end and a weight at its opposite end, a hand grip adjacent the housing, a rotary saw mounted in the housing, gearing contained in thetwo frames Jfor rotating the saw, pawl and rack adjacent the weight, means on the hand grip for operating the pawl to hold the saw in adjusted position, and two pivoted levers having r Aller at their lower ends to engage the treat-1 and guide the saw when same is operated. g

13. In a carcass sawing machine, the comhination of a horizontally movable frame, a vertically movable frame mounted on said horizontally movable frame. a saw housing mounted on the vertically movable frame, meam1 for permitting a Slight limited lateral rocking movement of the housing in two directions only on the vertically movable frame. a handle on the saw housing a rotary saw mounted in the housing, ami geariurr in the two framesl for rotating the saw.

l l. In a carcass sawing marhnv, the com- Iunation ol' a frame, a housing mounted on the frame, a pi'n and slot connection prorflml between the housing uml the frame lo permit a slight rocking movement of the housing, a Haw mounted in the frame, a pair ol' depending arms mounted on the housing and hearing rollers on their lower ends to engage the carcass in the operation of sawing. :unl means for rotating the Saw.

l5. ln a carcass sawing machine, the oombination of a frame, a housing mounted on the frame, said-` housing eomprising two members, one of which is formed lwith a 'longitudinal bearing, a horizontal bearing, and an annular ange formed with a depression, the other member having an annular iiange formed with a depression and a horizontal bearing, the two members being spaced a art from a point inside the outer meeting e ges,

a saw mounted in the spaoe, the depressions in the annular afnges adapted to receive packing which engages opposite sides of the saw, a shaft mounted in the horizontal bearings and on which the saw is supported, a fear on the shaft, a shaft mounted in the ngitudinal hearing, u. gear on the Ashaft, `aid gear meshing with the gear on the sau shaft, means for mounting the housing on the frame to permit a slight lateral rocking movement of said housing, and means for operating the longitudinal shaft.

In testimony whereof we allix our signatures.

DANIEL DAVEY. HARRY MAISON. 

